Abstract
The development of a stress estimation method based on the concept of 'Pseudo-3-D problem'. According to this method, a surface of a notched region of 3-D stress field, is treated as a pseudo 3-D plate without thickness. The method is applied to detect a crack near a notch of 3-D structures. The results of elastic finite element method (FEM) analysis is used to bring correct boundary conditions in stress estimation on the effect of strain gage's noise. The maximum stress is not generated at the notch edge but at the crack tip in a notched plate with a crack. Antiplane bending occurs on the plane containing the hidden crack due to the nonconformity of the centers in the tension and the ligaments. It is found that the forces and the Poisson's effect generate secondary deformation of the arrow that causes secondary compressive stress.
| Original language | English |
|---|---|
| Pages (from-to) | 765-769 |
| Number of pages | 5 |
| Journal | Structural Engineering and Mechanics |
| Volume | 24 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Dec 20 2006 |
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All Science Journal Classification (ASJC) codes
- Civil and Structural Engineering
- Building and Construction
- Mechanics of Materials
- Mechanical Engineering
Cite this
Crack detection with strain gages and the body force method. / Noguchi, Hiroshi; Harada, Toyomitsu.
In: Structural Engineering and Mechanics, Vol. 24, No. 6, 20.12.2006, p. 765-769.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Crack detection with strain gages and the body force method
AU - Noguchi, Hiroshi
AU - Harada, Toyomitsu
PY - 2006/12/20
Y1 - 2006/12/20
N2 - The development of a stress estimation method based on the concept of 'Pseudo-3-D problem'. According to this method, a surface of a notched region of 3-D stress field, is treated as a pseudo 3-D plate without thickness. The method is applied to detect a crack near a notch of 3-D structures. The results of elastic finite element method (FEM) analysis is used to bring correct boundary conditions in stress estimation on the effect of strain gage's noise. The maximum stress is not generated at the notch edge but at the crack tip in a notched plate with a crack. Antiplane bending occurs on the plane containing the hidden crack due to the nonconformity of the centers in the tension and the ligaments. It is found that the forces and the Poisson's effect generate secondary deformation of the arrow that causes secondary compressive stress.
AB - The development of a stress estimation method based on the concept of 'Pseudo-3-D problem'. According to this method, a surface of a notched region of 3-D stress field, is treated as a pseudo 3-D plate without thickness. The method is applied to detect a crack near a notch of 3-D structures. The results of elastic finite element method (FEM) analysis is used to bring correct boundary conditions in stress estimation on the effect of strain gage's noise. The maximum stress is not generated at the notch edge but at the crack tip in a notched plate with a crack. Antiplane bending occurs on the plane containing the hidden crack due to the nonconformity of the centers in the tension and the ligaments. It is found that the forces and the Poisson's effect generate secondary deformation of the arrow that causes secondary compressive stress.
UR - http://www.scopus.com/inward/record.url?scp=33846493031&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33846493031&partnerID=8YFLogxK
U2 - 10.12989/sem.2006.24.6.765
DO - 10.12989/sem.2006.24.6.765
M3 - Article
AN - SCOPUS:33846493031
VL - 24
SP - 765
EP - 769
JO - Structural Engineering and Mechanics
JF - Structural Engineering and Mechanics
SN - 1225-4568
IS - 6
ER -